180538572 has 48 divisors (see below), whose sum is σ = 461432160. Its totient is φ = 54684672.

The previous prime is 180538559. The next prime is 180538613. The reversal of 180538572 is 275835081.

It is a self number, because there is not a number n which added to its sum of digits gives 180538572.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9343 + ... + 21174.

It is an arithmetic number, because the mean of its divisors is an integer number (9613170).

Almost surely, 2^180538572 is an apocalyptic number.

180538572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

180538572 is an abundant number, since it is smaller than the sum of its proper divisors (280893588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

180538572 is a wasteful number, since it uses less digits than its factorization.

180538572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30570 (or 30568 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 39.

The square root of 180538572 is about 13436.4642670607. The cubic root of 180538572 is about 565.1841851278.

The spelling of 180538572 in words is "one hundred eighty million, five hundred thirty-eight thousand, five hundred seventy-two".